Wateb-jacket fob intebhajd-combustiolir engines



P. J. WESTERGAARD.

WATER-JACKET FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY 15. I918.

Patented May 27, 1919.

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PETER J. WESTERGAARD, REINBEGK, IOWA.

WATER-JACKET FOR INTERNAL-COMBUSTION ENGINES.

1,305,4Ml1l.

Specification of Letters Patent.

Application filed May 15. 1918. Serial N0. 234.730.

To all whom it may concern:

Be it known that 1, PETER J. WESTER- GAARD, citizen of the United States,'residing at Relnbeck, in the county of Grundy and State of Iowa, have invented new and useful.

water jacket of an engine or the wall of a radiator or other similar device containing water with an opening normally closed in any suitable manner as by means of a plate member held in position by retaining means, under normal conditions, but designed to give way under the excessive pressure, as in the event of freezing, so that the plate will be forced outwardly from the opening and in position to be entirely freed therefrom by the pressure of the freezing water, or of the congealed water.

With the foregoing and other objects in view, the invention consists in the novel construction, combination, and arrangement of elements hereinafter described and claimed.

In the accompanying drawings,

Figure 1 shows the safety appliance in elevation as applied to the water jacket of an automobile engine; Fig. 2 is a vertical section through a portion of one of the engine cylinders and through the safety device; Fig.3 is a fragmentary section of a slightly modified form; Fig. 4: is a section through a radiator with the safety appliance of Fig. 3 in operative position.

The device herein described is adapted for use in connection with the water jacket of any commercial type of internal combustion engine, or in connection with a radiator or other similar device, the object being broadly to prevent the rupture of the walls of the water jacket or radiator in the event of freezing.

An engine of the type specified is shown conventionally, the cylinders being designated 10, and the water'jacket inclosing the valve mechanism and the like being designated 12. Any suitable number of openings 14: are provided on the sides of the water jacket, one on each side being suflicient in certain instances, although two or more may be provided when desirable, depending in partupon the extent of the water jacket and the number of cylinders. These openings 14 are closed by means of plate members 16, engaging the cutaway or chamfered portions 17 adjacent. to walls of the opening. Any suitable packing material 18 may be employed for the purpose of effecting a water tight connection.

Each plate 16 is retained in position in any suitable manner, but in the drawings 1 have shown a plate member 20 formed of heavy resilient material and retained in position by means of a-bolt 21. The strength Patented May 27, 1919;

of the spring 20 will be suflicient to retain the plate 16 in position under all ordinary conditlons, but the spring will give when an excessive pressure is exerted on plate 16 from the inner side, and this would only occur in the event of freezing of the water in the jacket.

In Fig. 3 I have shown a plate member 25 engaging a grooved portion 26within the wall 27 of the water jacket, the opposite edge of the plate being retained in position by a spring 28, a deflected portion of the spring engagingthe beveled edge 29 of the plate. That portion of the wall designated 30 is chamfered or cut away at 31 and a water tight connection is effected by any suitable means. In the construction last described it is the intention to provide for the forcing of the plate outwardly in the event of freezing and for the dropping of the plate from its position within the opening. In Fig. 4 I have shown a cover 35 applied to the wall of a radiator 37 and retained by means of a spring 36 in the manner above described.

What is claimed is:

1. In a device of the class described, a receptacle having an opening therein, a portion of the wall of which is formed with a channel extending longitudinally thereof, other portions of the wall of the opening being chamfered, a plate member normally' closing the opening and engaging the chanbeveled edge on the side of the plate oppo site to the chamfered portion, and said beveled edge being engaged by the deflected end portion of the resilient member.

2. In a device of the class described, a water jacket having an opening therein, a portion of the Wall of which is formed wlth a channel extendin longitudinally thereof,

5 other portions of t e wall of the opening being chamfered, means closing said 0 ening comprising a plate engaging the c anneled and chamfered portions, and means resiliently retaining the platein engagement with the chnmfered portions, normally preventing displacement with reference to the channel portion.

In testimony whereof I aflix my signature.

PETER J. WESTERGAARD. 

